High Geothermal Heat Flow, Basal Melt, and the Origin of Rapid Ice Flow in Central Greenland

Age-depth relations from internal layering reveal a large region of rapid basal melting in Greenland. Melt is localized at the onset of rapid ice flow in the large ice stream that drains north off the summit dome and other areas in the northeast quadrant of the ice sheet. Locally, high melt rates in...

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Published in:Science
Main Authors: Fahnestock, Mark, Abdalati, Waleed, Joughin, Ian, Brozena, John, Gogineni, Prasad
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 2001
Subjects:
Greenland
Ice Sheet
Online Access:http://dx.doi.org/10.1126/science.1065370
https://www.science.org/doi/pdf/10.1126/science.1065370
id craaas:10.1126/science.1065370
record_format openpolar
spelling craaas:10.1126/science.1065370 2024-09-30T14:35:41+00:00 High Geothermal Heat Flow, Basal Melt, and the Origin of Rapid Ice Flow in Central Greenland Fahnestock, Mark Abdalati, Waleed Joughin, Ian Brozena, John Gogineni, Prasad 2001 http://dx.doi.org/10.1126/science.1065370 https://www.science.org/doi/pdf/10.1126/science.1065370 en eng American Association for the Advancement of Science (AAAS) Science volume 294, issue 5550, page 2338-2342 ISSN 0036-8075 1095-9203 journal-article 2001 craaas https://doi.org/10.1126/science.1065370 2024-09-12T04:01:19Z Age-depth relations from internal layering reveal a large region of rapid basal melting in Greenland. Melt is localized at the onset of rapid ice flow in the large ice stream that drains north off the summit dome and other areas in the northeast quadrant of the ice sheet. Locally, high melt rates indicate geothermal fluxes 15 to 30 times continental background. The southern limit of melt coincides with magnetic anomalies and topography that suggest a volcanic origin. Article in Journal/Newspaper Greenland Ice Sheet AAAS Resource Center (American Association for the Advancement of Science) Greenland Science 294 5550 2338 2342
institution Open Polar
collection AAAS Resource Center (American Association for the Advancement of Science)
op_collection_id craaas
language English
description Age-depth relations from internal layering reveal a large region of rapid basal melting in Greenland. Melt is localized at the onset of rapid ice flow in the large ice stream that drains north off the summit dome and other areas in the northeast quadrant of the ice sheet. Locally, high melt rates indicate geothermal fluxes 15 to 30 times continental background. The southern limit of melt coincides with magnetic anomalies and topography that suggest a volcanic origin.
format Article in Journal/Newspaper
author Fahnestock, Mark
Abdalati, Waleed
Joughin, Ian
Brozena, John
Gogineni, Prasad
spellingShingle Fahnestock, Mark
Abdalati, Waleed
Joughin, Ian
Brozena, John
Gogineni, Prasad
High Geothermal Heat Flow, Basal Melt, and the Origin of Rapid Ice Flow in Central Greenland
author_facet Fahnestock, Mark
Abdalati, Waleed
Joughin, Ian
Brozena, John
Gogineni, Prasad
author_sort Fahnestock, Mark
title High Geothermal Heat Flow, Basal Melt, and the Origin of Rapid Ice Flow in Central Greenland
title_short High Geothermal Heat Flow, Basal Melt, and the Origin of Rapid Ice Flow in Central Greenland
title_full High Geothermal Heat Flow, Basal Melt, and the Origin of Rapid Ice Flow in Central Greenland
title_fullStr High Geothermal Heat Flow, Basal Melt, and the Origin of Rapid Ice Flow in Central Greenland
title_full_unstemmed High Geothermal Heat Flow, Basal Melt, and the Origin of Rapid Ice Flow in Central Greenland
title_sort high geothermal heat flow, basal melt, and the origin of rapid ice flow in central greenland
publisher American Association for the Advancement of Science (AAAS)
publishDate 2001
url http://dx.doi.org/10.1126/science.1065370
https://www.science.org/doi/pdf/10.1126/science.1065370
geographic Greenland
geographic_facet Greenland
genre Greenland
Ice Sheet
genre_facet Greenland
Ice Sheet
op_source Science
volume 294, issue 5550, page 2338-2342
ISSN 0036-8075 1095-9203
op_doi https://doi.org/10.1126/science.1065370
container_title Science
container_volume 294
container_issue 5550
container_start_page 2338
op_container_end_page 2342
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